Sidewinder 100+ Deck Box: Ajani, Counterattack Leader

Built for Ajani's Pride — and Your Most Important Deck

The Ultimate Guard Sidewinder 100+ in the Ajani, Counterattack Leader art isn't just a place to stash your cards — it's a statement piece for a deck you've put real work into. The Sidewinder line is one of Ultimate Guard's most trusted daily-carry designs, built from rigid polypropylene with a satisfying snap closure and a smooth sideways-opening lid that keeps your cards fully accessible across the table. This box earns its place in your bag whether you're grinding Friday Night Magic or protecting a Commander build that took weeks to tune.

Capacity That Handles Your Full Build

The Sidewinder 100+ is rated for up to 120 single-sleeved cards — plenty of room for a Commander deck with a few extras — or 100 double-sleeved cards for players running inner sleeves alongside their outers. Double-sleeve compatibility is confirmed, which matters if you're pairing premium Dragon Shield or Perfect Fit inners under your standard sleeves. Either way, the deck goes in clean and comes out clean.

Closure, Build, and Access

The Sidewinder's defining feature is its side-loading design — the lid swings open horizontally rather than lifting off the top, keeping the deck in place and making one-handed access a natural motion mid-game. The snap closure is firm and reliable with no risk of popping open in a bag. The rigid polypropylene shell holds its shape under the daily punishment tournament players put their gear through, and the interior fit is snug enough that cards don't rattle or shift during transport.

Built Into the Ultimate Guard Ecosystem

The Sidewinder 100+ is specifically designed to integrate with Ultimate Guard's Omnihive, Superhive, and Smarthive mass storage systems. If you're building out a collection storage setup with one of those boxes, the Sidewinder slots in cleanly — a practical detail that rewards players who think in systems rather than individual pieces.

Who This Is For

This is the deck box for the Commander player who has a deck they genuinely care about and wants the art on the outside to match that investment. The Ajani, Counterattack Leader artwork makes it a natural home for white, white-green, or Ajani-themed builds, and a strong gift choice for any player who loves the character. Ultimate Guard's build standard also makes it a legitimate tournament carry for Standard, Pioneer, or Modern players who need something that holds 100 double-sleeved cards and simply won't let them down.